UPD78F1506GF-GAT-AX Renesas Electronics America, UPD78F1506GF-GAT-AX Datasheet - Page 230

• Manufacturer Part Number: UPD78F1506GF-GAT-AX
• Description: MCU 16BIT 78K0R/LX3 128-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Lx3r

Specifications of UPD78F1506GF-GAT-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LCD, LVD, POR, PWM, WDT
• Number Of I /o: 78
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x12b, D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

78K0R/Lx3
R01UH0004EJ0401 Rev.4.01
Jul 2, 2010
Caution 1. When using the X1 oscillator and XT1 oscillator, wire as follows in the area enclosed by the
Figure 5-12 shows examples of incorrect resonator connection.
Note that the XT1 oscillator is designed as a low-gain circuit for achieving low-power consumption.
broken lines in the Figures 5-10 and 5-11 to avoid an adverse effect from wiring capacitance.
• Keep the wiring length as short as possible.
• Do not cross the wiring with the other signal lines. Do not route the wiring near a signal line
• Always make the ground point of the oscillator capacitor the same potential as V
• Do not fetch signals from the oscillator.
Note the following points when designing the XT1 oscillator.
• The pins and circuit board include parasitic capacitance. Therefore, confirm that there are no
• When low-consumption oscillation or super-low-consumption oscillation is selected, lower
• Keep the wiring length between the XT1 and XT2 pins and resonator as short as possible and
• Configure the circuit board by using material with little parasitic capacitance and wire
• Place a ground pattern that has the same potential as V
• Do not cross the signal lines between the XT1 and XT2 pins and the resonator with other signal
• Moisture absorption by the circuit board and condensation on the board in a highly humid
• Coat the surface of the circuit board by using material that does not generate capacitance or
through which a high fluctuating current flows.
ground the capacitor to a ground pattern through which a high current flows.
problems by performing oscillation evaluation on the circuit board to be actually used.
power consumption than when selecting normal oscillation can be achieved. However, in this
case, the XT1 oscillation margin is reduced, so perform sufficient oscillation evaluation of the
resonator to be used for XT1 oscillation before using the resonator.
parasitic capacitance and wire resistance as small as possible. This is particularly important
when super-low-consumption oscillation (AMPHS1 = 1) is selected.
resistance.
lines. Do not route the signal lines near a signal line through which a high fluctuating current
flows.
environment may cause the impedance between the XT1 and XT2 pins to drop and disable
oscillation. When using the circuit board in such an environment, prevent the circuit board
from absorbing moisture by taking measures such as coating the circuit board.
leakage between the XT1 and XT2 pins.
SS
CHAPTER 5 CLOCK GENERATOR
(if possible) around the XT1 oscillator.
SS
. Do not
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